DULUTH, GA. ? Retief Goosen has made a bunch of long putts at the BellSouth Classic. Phil Mickelson couldn’t make one from 3 feet  and it cost him the lead.

Goosen shot a 4-under-par 68 in the third round Saturday, taking a two-stroke advantage over Mickelson on a course that’s doing a pretty good impression of Augusta National.

Three days of sun and steady breezes turned the greens rock-hard at the TPC at Sugarloaf, mimicking conditions that will be the norm in the Masters next weekend.

“If you get on the wrong side of the flag, anything can happen  no matter how good your short game is,” said Goosen, who knows a thing or two about missing short putts.

Mickelson found out just how tricky those greens can be, four-putting the 13th to rekindle memories of a similar debacle at The Players Championship.

Lefty missed a birdie attempt from 3 feet, and needed two more putts to get down. Still, he wasn’t too upset about shooting 71 in the difficult conditions.

“Retief played an incredible round to shoot 4 under on a day like today,” Mickelson said. “I feel like I’ve played three good, solid rounds. I feel like if I can do one more good, solid round, I should have a good opportunity to win.”

Goosen, whose only victory on American soil came at the U.S. Open last year, was at 14 under with a 202 total.

The somber South African launched a streak of five birdies in six holes by sinking a 20-foot putt at No. 9. The 465-yard hole is one of the toughest tests on the course, surrendering only 10 birdies all day.

Goosen wasn’t done. He made a 25-footer for birdie at the 12th, another 20-footer at 13 and signed for the lowest score of the day. Only 10 players who broke into the 60s.

“I’m pretty happy where I am,” Goosen said. “I’ve not been playing well this week at all. But I’ve been putting great, and that’s why I am where I am.”

Goosen struggled down the stretch with bogeys at 16 and 18, leaving Mickelson in contention for the 21st victory of his career. Only Tiger Woods  who isn’t playing this week  has more among active players.

“The greens are very difficult,” Lefty said. “I made countless 4- to 6-footers for par. Obviously, I missed one at 13, but I hit a lot of good shots. For the most part, I thought I played well.”

After making the turn with a two-stroke lead over Goosen, Mickelson found himself tied when he walked away from the par-5 10th.

Goosen birdied the hole, while Mickelson came up a club short with his second shot  winding up in the front bunker.

Mickelson chunked his sand wedge  barely clearing the lip of the bunker  and left the ensuing chip 12 feet from the flag. He missed the putt for just his third bogey of the tournament, knowing this was a hole where he should have done no worse that par.

Then came the meltdown at 13, the shortest par-4 on the course at 310 yards. Playing in the group ahead of Mickelson, Goosen came through with another birdie, leaving his tee shot just off the green, chipping to 19 feet and sinking the putt.

Mickelson drove onto the green for the second time in three days, but it did him no good. His first putt, downhill from about 50 feet away, stopped short and left a testy birdie attempt.

That putt slid 6 feet past the hole, and the comebacker missed, too. Mickelson finally tapped in and walked off the green shaking his head.

Flash back to The Players two weeks ago. Mickelson knocked himself out of contention by five-putting the 10th green for a quadruple-bogey 8.